All in all, a perfect movie.
Even "The Matrix" is a good film about the difference in men's perceptions of the world -- carnal or spiritual; in the matrix or liberated from it.
Now I know why I like that movie so much. :) I've never thought about it in those terms before, but you're absolutely right:
I also love the Matrix trilogy. They certainly deal with the "what is real" question we've been talking about.